What type of chemical reaction must occur for electrons to flow from one molecule to the next and supply the energy
for metabolism?
a. acid/base
b. reduction/oxidation
c. exothermic
d. trimolecular
e. phosphorylation
ANSWER: b
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The order of signal transmission beginning
with a stimulus is from
a. sensory neuron to interneuron to motor neuron. b. motor neuron to sensory neuron to interneuron. c. interneuron to sensory neuron to motor neuron. d. sensory neuron to motor neuron to interneuron. e. motor neuron to interneuron to sensory neuron
Energetically favorable reactions help cells build biomass
What will be an ideal response?
Which of the listed organisms do not possess the necessary features to be classified as a member of phylum Mollusca?
A. nautiluses B. clams C. squids D. snails E. lobsters
What is the significance of the homeobox sequence studied in animal species?
A) Certain genetic instructions vary based on structural differences. B) Certain genetic instructions vary based on phyla. C) Certain genetic instructions for development have changed a great deal over time. D) Certain genetic instructions for development have changed very little over time.